1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI" /* SunOS */
28
29 #include <ctype.h>
30 #include <fcntl.h>
31 #include <sys/socket.h>
32 #include <sys/types.h>
33 #include <net/if.h>
34 #include <netinet/in_systm.h>
35 #include <netinet/in.h>
36 #include <netinet/ip.h>
37 #include <inet/led.h>
38 #include <inet/ip6.h>
39 #include <arpa/inet.h>
40 #include <protocols/routed.h>
41 #include <protocols/ripngd.h>
42 #include "snoop.h"
43
44 extern char *dlc_header;
45 static char *show_cmd6();
46
47 static struct in6_addr all_zeroes_addr = { { 0x0, 0x0, 0x0, 0x0,
48 0x0, 0x0, 0x0, 0x0,
49 0x0, 0x0, 0x0, 0x0,
50 0x0, 0x0, 0x0, 0x0 } };
51
52 int
interpret_rip6(int flags,struct rip6 * rip6,int fraglen)53 interpret_rip6(int flags, struct rip6 *rip6, int fraglen)
54 {
55 char *p;
56 struct netinfo6 *n;
57 int len, count;
58 struct in6_addr *dst;
59 int notdefault = 0;
60 char dststr[INET6_ADDRSTRLEN];
61
62 if (flags & F_SUM) {
63 switch (rip6->rip6_cmd) {
64 case RIPCMD6_REQUEST: p = "C"; break;
65 case RIPCMD6_RESPONSE: p = "R"; break;
66 default: p = "?"; break;
67 }
68
69 switch (rip6->rip6_cmd) {
70 case RIPCMD6_REQUEST:
71 case RIPCMD6_RESPONSE:
72 len = fraglen - 4;
73 count = 0;
74 for (n = rip6->rip6_nets;
75 len >= sizeof (struct netinfo6); n++) {
76 count++;
77 len -= sizeof (struct netinfo6);
78 }
79 (void) sprintf(get_sum_line(),
80 "RIPng %s (%d destinations)", p, count);
81 break;
82 default:
83 (void) sprintf(get_sum_line(), "RIPng %s", p);
84 break;
85 }
86 }
87
88 if (flags & F_DTAIL) {
89
90 show_header("RIPng: ", "Routing Information Protocol for IPv6",
91 fraglen);
92 show_space();
93 (void) sprintf(get_line((char *)(uintptr_t)rip6->rip6_cmd -
94 dlc_header, 1), "Opcode = %d (%s)", rip6->rip6_cmd,
95 show_cmd6(rip6->rip6_cmd));
96 (void) sprintf(get_line((char *)(uintptr_t)rip6->rip6_vers -
97 dlc_header, 1), "Version = %d", rip6->rip6_vers);
98
99 switch (rip6->rip6_cmd) {
100 case RIPCMD6_REQUEST:
101 case RIPCMD6_RESPONSE:
102 show_space();
103 (void) sprintf(get_line(0, 0), "Address"
104 " Prefix Metric");
105 len = fraglen - 4;
106 for (n = rip6->rip6_nets;
107 len >= sizeof (struct netinfo6); n++) {
108 if (rip6->rip6_vers > 0) {
109 n->rip6_metric = n->rip6_metric;
110 }
111 dst = &n->rip6_prefix;
112 notdefault = bcmp((caddr_t *)dst,
113 (caddr_t *)&all_zeroes_addr, sizeof (*dst));
114 (void) inet_ntop(AF_INET6, (char *)dst, dststr,
115 INET6_ADDRSTRLEN);
116 (void) sprintf(get_line((char *)n - dlc_header,
117 sizeof (struct netinfo6)),
118 "%-30s %-10d %-5d %s",
119 notdefault ? dststr :
120 " (default)", n->rip6_prefix_length,
121 n->rip6_metric, n->rip6_metric == 16 ?
122 " (not reachable)":"");
123 len -= sizeof (struct netinfo);
124 }
125 break;
126 }
127 }
128 return (fraglen);
129 }
130
131 static char *
show_cmd6(c)132 show_cmd6(c)
133 int c;
134 {
135 switch (c) {
136 case RIPCMD6_REQUEST: return ("route request");
137 case RIPCMD6_RESPONSE: return ("route response");
138 }
139 return ("?");
140 }
141